Controlled ecological greenhouse with zero release

Abstract

The invention relates to a controlled ecological greenhouse with zero release, comprising a greenhouse consisting of a transparent plate ceiling 1 and a steel greenhouse framework 2. An insect-prevention net 3 is arranged at the periphery of the greenhouse. The controlled ecological greenhouse is characterized in that a plurality of fish culturing ponds 9 and a biological filter 18 are arranged at the bottom side inside the greenhouse, the upper end part of each fish culturing pond 9 is provided with an operating platform 10, a plurality of azolla cultivating shelves 6 and a plurality of plant cultivating beds 5 are arranged on the operating platform 10, an overflow opening 16 is arranged at the upper side part of each fish culturing pond 9, the water body flowing through the overflow opening 16 enters the biological filter 18 after passing through a water filtering device 17, the output end of a circulating water pump 19 is divided into two paths, and one of the two paths passes through a precise filtering valve 21 and a spraying can path 22 and then enters a spraying device 26 so as to adjust the humidity of the greenhouse. The controlled ecological greenhouse with zero release emphasizes a new concept of saving water, saving energy, reducing emission and advocating sustainable development, does not discharge any culturing sewage outside a system except water consumption of plant transpiration, reduces dependency on natural resources and realizes the combination of planting and culturing and the zero release of pollutants.

Description

technical field [0001] The invention relates to a zero-emission controlled ecological greenhouse. Background technique [0002] The green revolution brought about a great increase in agricultural production and solved the problem of food and clothing for farmers. However, due to the excessive dependence of high-yield agricultural products on chemical fertilizers, pesticides and irrigation, soil, water system and air pollution, increased resistance to diseases and insect pests, ecological and environmental problems such as secondary salinization of soil, and rising production costs have caused land The decline in both quality and farmers' income has posed a severe challenge to the sustainable utilization of cultivated land resources and food security in our country. The food chain has been destroyed, food safety is worrying, and water safety issues are also very prominent. Especially in coastal provinces, the use of chemical fertilizers has seriously exceeded reasonable stan...

AI Technical Summary

Problems solved by technology

However, due to the excessive dependence of high-yield agricultural products on chemical fertilizers, pesticides and irrigation, soil, water system and air pollution, increased resistance to diseases and insect pests, ecological and environmental problems such as secondary salinization of soil, and rising production costs have caused land The decline in quality and farmers' income has posed a severe challenge to the sustainable use of cultivated land resources and food security in our country

The food chain has been destroyed, food safety is worrying, and water safety issues are also very prominent. Especially in coastal provinces, the use of chemical fertilizers has seriously exceeded reasonable standards. In addition, the discharge of livestock, poultry and aquaculture sewage exceeds the standard, resulting in non-point source pollution that is difficult to control, causing lakes and rivers. , The eutrophication of the original ecosystem in shallow sea waters also poses a threat to the health of the majority of residents

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